# std::regex_constants Symbol Index

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< cpp‎ | symbol index

This page tries to list all the symbols that are available from the standard library (regular expressions library) in the namespace std::regex_constants. The symbols are written as follows:

- Function names with `()`.
- Templates with `<>`.

##

> `A B C E F G I M N O S`

### A

`awk` (since C++11)

### B

`basic` (since C++11)

### C

`collate` (since C++11)

### E

`ECMAScript` (since C++11)
`egrep` (since C++11)
`error_backref` (since C++11)
`error_badbrace` (since C++11)
`error_badrepeat` (since C++11)
`error_brace` (since C++11)
`error_brack` (since C++11)
`error_collate` (since C++11)
`error_complexity` (since C++11)
`error_ctype` (since C++11)
`error_escape` (since C++11)
`error_paren` (since C++11)
`error_range` (since C++11)
`error_space` (since C++11)
`error_stack` (since C++11)
`error_type` (since C++11)
`extended` (since C++11)

### F

`format_default` (since C++11)
`format_first_only` (since C++11)
`format_no_copy` (since C++11)
`format_sed` (since C++11)

### G

`grep` (since C++11)

### I

`icase` (since C++11)

### M

`match_any` (since C++11)
`match_continuous` (since C++11)
`match_default` (since C++11)
`match_flag_type` (since C++11)
`match_not_bol` (since C++11)
`match_not_bow` (since C++11)
`match_not_eol` (since C++11)
`match_not_eow` (since C++11)
`match_not_null` (since C++11)
`match_prev_avail` (since C++11)
`multiline` (since C++17)

### N

`nosubs` (since C++11)

### O

`optimize` (since C++11)

### S

`syntax_option_type` (since C++11)

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